Clinical Study

Treatment Strategy According to Findings on Pressure-Flow Study for Women with Decreased Urinary Flow Rate

Table 1

Baseline parameters in patients with and without bladder outlet obstruction.

ParametersWithout BOO(1)With BOOP-value(2)
( )( )

Age69.5 (8.0)(3)46.0 (12.4).025
IPSS17.8 (8.3)20.0 (7.6).471
QOL index5.3 (0.5)5.7 (0.5).337
Uroflowmetry
Voided volume (mL)223.7 (54.6)176.7 (95.0).423
Maximum flow rate (mL/sec)8.1 (2.3)6.8 (3.2).379
Average flow rate (mL/sec)3.7 (1.0)3.1 (1.7).471
Postvoid residual urine volume (mL)71.3 (69.4)236.3 (170.5).078

Pressure flow studies
Maximum flow rate (mL/sec)8.3 (2.3)5.8 (1.5).093
Pressure at maximum flow (cm water)23.2 (11.6)88.0 (20.2).004
Urethral resistance factor (cm water)15.4 (8.0)52.9 (11.3).004
Maximum watts factor (W/m2)5.2 (2.1)12.4 (2.9).004

(1)BOO, bladder outlet obstruction
(2)Mann-Whitney test
(3)Mean (standard deviation).